{"id":"CVE-2026-85109","aliases":["EUVD-2026-70468","GHSA-w4wj-hq79-xrch"],"status":"published","title":"Tenda HG10 Boa Web Server formLogin buffer overflow","description":"A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formLogin of the file /boaform/formLogin of the component Boa Web Server. Executing a manipulation of the argument Username can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01096,"percentile":0.65838,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-120"],"published":"2026-09-03T13:30:12Z","modified":"2026-09-03T17:25:25Z","products":[{"vendor":"tenda","product":"hg10"}],"references":[{"url":"https://vuldb.com/vuln/398315","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/398315/cti","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-85109","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/891994","tags":["third-party-advisory"]},{"url":"https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/bof-formLogin_username.md","tags":["exploit"]},{"url":"https://www.tenda.com.cn/","tags":["product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85109"},{"url":"https://www.tenda.com.cn"},{"url":"https://github.com/advisories/GHSA-w4wj-hq79-xrch"}],"sources":{"cve":[{"id":"CVE-2026-85109","title":"Tenda HG10 Boa Web Server formLogin buffer overflow","description":"A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formLogin of the file /boaform/formLogin of the component Boa Web Server. Executing a manipulation of the argument Username can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.","status":"published","published":"2026-09-03T13:30:12.089Z","modified":"2026-09-03T14:29:53.673Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","level":"critical","assessor":"cna"},{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","level":"critical","assessor":"cna"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-120","CWE-119"],"updated_at":"2026-11-02T14:19:52.410665Z"}],"euvd":[{"id":"EUVD-2026-70468","description":"A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formLogin of the file /boaform/formLogin of the component Boa Web Server. Executing a manipulation of the argument Username can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.","status":"published","published":"2026-09-03T13:30:12Z","modified":"2026-09-03T14:29:53Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","level":"critical"}],"updated_at":"2026-11-02T18:01:13.671159Z"}],"ghsa":[{"id":"GHSA-w4wj-hq79-xrch","title":"A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formLogin...","description":"A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formLogin of the file /boaform/formLogin of the component Boa Web Server. Executing a manipulation of the argument Username can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.","status":"published","published":"2026-09-03T15:32:22Z","modified":"2026-09-03T15:32:29Z","cvss":[{"version":"4.0","score":8.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:11:19.170234Z"}],"nvd":[{"id":"CVE-2026-85109","description":"A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formLogin of the file /boaform/formLogin of the component Boa Web Server. Executing a manipulation of the argument Username can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.","status":"published","published":"2026-09-03T14:17:04.663Z","modified":"2026-09-03T17:25:25.113Z","cvss":[{"version":"4.0","score":8.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"secondary"}],"cwes":["CWE-119","CWE-120"],"updated_at":"2026-11-02T14:12:43.399612Z"}]}}